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A019014 Cycle class sequence c(2n) (the number of true cycles of length 2n in which a certain node is included) for zeolite ERI = Erionite (Na2,Ca..)3.5 K2 [ Al9Si27O72 ] . 27 H2O. 0
2, 5, 26, 182, 1122, 6132, 35768, 222992, 1437244, 9398554, 62612956, 423908430, 2900198656, 19981497250, 138474355718 (list; graph; refs; listen; history; text; internal format)
OFFSET

2,1

REFERENCES

G. Thimm and W. E. Klee, Zeolite cycle sequences, Zeolites, 19, pp. 422-424, 1997.

LINKS

Table of n, a(n) for n=2..16.

G. Thimm, Cycle sequences of crystal structures

CROSSREFS

Sequence in context: A226170 A334639 A072268 * A128595 A180749 A323299

Adjacent sequences:  A019011 A019012 A019013 * A019015 A019016 A019017

KEYWORD

nonn,more

AUTHOR

Georg Thimm (mgeorg(AT)ntu.edu.sg)

EXTENSIONS

a(11)-a(16) from Sean A. Irvine, Mar 20 2019

STATUS

approved

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Last modified June 5 09:32 EDT 2020. Contains 334829 sequences. (Running on oeis4.)